cve/2021/CVE-2021-21933.md

### [CVE-2021-21933](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21933)
![](https://img.shields.io/static/v1?label=Product&message=Advantech&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-89%3A%20Improper%20Neutralization%20of%20Special%20Elements%20used%20in%20an%20SQL%20Command%20('SQL%20Injection')&color=brighgreen)

### Description

A specially-crafted HTTP request can lead to SQL injection. An attacker can make authenticated HTTP requests to trigger this at ‘esn_filter’ parameter. This can be done as any authenticated user or through cross-site request forgery.

### POC

#### Reference
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1366

#### Github
No PoCs found on GitHub currently.